| Publication |
PDF |
| #132: Using a Phase-Shifted Full-Bridge Topology in Small Form Factor Power Converters |
981KB |
| #131: Precision Output Current Limiting Using Average Current Monitor Feature |
1.4MB |
| #130: Designing Non-Inverting Buck-Boost (Zeta) Converters with a Buck P-FET Controller |
250KB |
| #129: Comparing the Merits of Integrated Power Modules versus Discrete Regulators |
622KB |
| #128: Average Current Limit Balances Center Point of Half-Bridge Input Caps |
335KB |
| #127: An Alternative Approach to Higher-Power Boost Converters |
245KB |
| #126: Dimming Techniques for Switched-Mode LED Drivers |
387KB |
| #125: Improve Power Converter Reliability Using Hiccup-Mode Current Limiting |
446KB |
| #124: Isolated Supply Overview and Design Trade-Offs |
685KB |
| #123: Voltage Reference Selection Basics |
297KB |
| #122: Optimizing Power Controller Designs through Effective Utilization of Performance Features |
329KB |
| #121: Power Supply Design Considerations for Modern FPGAs |
390KB |
| #120: Calculating Losses and Junction Temperature for High-Power-Density Switching Converters |
341KB |
| #119: Color-Management LED Drivers Have a Bright Future |
478KB |
| #118: Saving Energy via Smart Power Management |
389KB |
| #117: Overcoming Challenges in Designing Step-Down Regulator Applications with ≥40V Input Voltage |
535KB |
| #116: Driving LEDs: To Cap or Not to Cap |
507KB |
| #115: Implementing Single-Chip FPGA Power Solutions |
470KB |
| #114: Best Layout Practices for Switching Power Supplies |
476KB |
| #113: Optimizing Efficiency in White LED Backlight Applications |
537KB |
| #112: Synchronous Rectification in High–Performance Power Converter Design |
527KB |
| #111: Buck Regulator Topologies for Wide Input/Output Voltage Differentials |
1.0MB |
| #110: Optimizing RF Power Amplifier System Efficiency Using DC-DC Converters |
530KB |
| #109: Advanced Topics in Powering FPGAs |
1.1MB |
| #108: Operation and Benefits of Active-Clamp Forward Power Converters |
503KB |
| #107: Analyzing Power Modules |
2.3MB |
| #106: Inside Current-Mode Control |
376KB |
| #105: Power Management Design for Applications Processors |
1.3MB |
| #104: Power Supply Design for Power-over-Ethernet Applications |
1.8MB |
| #103: Understanding Portable Applications Requirements |
429KB |
| #102: Power Management Considerations for FPGAs and ASICs |
711KB |
| #101: Feedback Techniques for Crossing the Isolation Boundary |
490KB |
Overview: Phase-Shifted Full-Bridge (PSFB) topology has been traditionally used in high input voltage (~400V), high power (>500W) converters that are usually not required to be packed in a small form factor such as the telecom industry standard 1/4th (2.28*1.45 inches) and 1/8th brick format (2.28*0.89 inches). The complexity of the topology, lack of easy-to-use controllers, its perceived benefits only at high input voltages and the use of an additional commutating inductor for resonant transitions are some of the reasons why PSFB topology has not been applied at standard telecom input range of 36V to 75V. The LM5046 is the industry's first PSFB controller with integrated 100V primary drivers. Its high level of integration eases application of PSFB topology into small form factor power converters.